import java.net.*;
public class ReceiveLetterForClient implements Runnable{
    public void run(){
        DatagramPacket pack=null;
        DatagramSocket postman=null;
        byte data[]=new byte[8192];
        try{
            pack=new DatagramPacket(data,data.length);
            postman=new DatagramSocket(666);
        }
        catch(Exception e){}
        while(true){
            if(postman==null)
                break;
            else{
                try{
                    postman.receive(pack);
                    String message=new String(pack.getData(),0,pack.getLength());
                    System.out.printf("%25s\n","收到："+message);
                }
                catch(Exception e){}
            }
        }
    }
}